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biology and chemistry

Total questions: 66

Worksheet time: 1hrs 19mins

Name
Class
Date
1.

Amoeba is an example of

a)

Virus

b)

Bacteria

c)

Protozoa

d)

Fungus

2.

Which is not a condition for the growth of microorganisms

a)

Water

b)

Sunlight

c)

Suitable temperature

d)

Food supply

3.
Most microorganisms cannot be seen without a...
a)
microscope
b)
magnifying lens
c)
telescope
d)
x-ray machine
4.
Which is a true statement?
a)
All microorganisms are harmful.
b)
All microorganisms are beneficial.
c)
Some microorganisms are harmful while others are beneficial.
d)
Microorganisms are beneficial only to humans.
5.
Yeast is used to make...
a)
rolls
b)
cakes
c)
pizza crust
d)
all of the above
6.
What is the cause of the common cold?
a)
bacteria
b)
cold temperatures
c)
sneezing and coughing
d)
viruses
7.
Yogurt and cheese  can be produced from ___________.
a)
Bacteria
b)
Virus
c)
Protozoa
d)
Algae
8.
The smallest microorganism on earth is known as  _____________
a)
a virus
b)
bacteria
c)
algae
d)
fungi
9.

A fungi which is a rich source of protein

a)

Mushroom

b)

Chlamydomonas

c)

Tofu

d)

Aspergillus

10.

Which of these is a common symptom of food poisoning

a)

vomiting

b)

coughing

c)

sore throat

d)

aching muscles

11.

Fungi grows well in _____________ and _____________ places.

a)

warm and dark

b)

warm and bright

c)

cold and dark

d)

cold and bright

12.

Choose the answer which contains only vaccines made from weakened microbes

a)

Polio, Influenza

b)

Typhoid, Tetanus

c)

Measles, Influenza

d)

Polio, Tuberculosis

13.

What type of micro-organism is shown?

a)

bacteria

b)

fungi

c)

virus

d)

algae

14.

What is the name of the smallest living thing that can't be seen without a microscope?

a)

Micro-organism

b)

Bacteria

c)

Macro-organism

d)

Virus

15.

Mould and mushrooms are examples of:

(a)  

16.

Which type of micro-organism is thought to be among the first life forms to live on Earth?

a)

Bacteria

b)

Fungi

c)

Algae

d)

Protozoa

17.

Which type of micro-organism is predominately aquatic?

a)

Bacteria

b)

Fungi

c)

Algae

d)

Protozoa

18.

Which microbes come in a wide range of shapes and complexities?

a)

Algae

b)

Bacteria

c)

Fungi

d)

Protozoa

e)

Viruses

19.

Fungi obtain food ______________________.

a)

by spores

b)

from the soil

c)

from other living things

d)

through photosynthesis

20.

Ringworm is an example of a ________. It is also zoonotic which means it can be transferred from ________ to humans.

a)

fungi

animals

b)

bacteria

objects

c)

virus

plants

d)

protozoa

water

21.

Which type of micro-organism forms these types of blooms (blue-green) which can be toxic to animals?

a)

algae

b)

bacteria

c)

fungi

d)

protozoa

e)

viruses

22.

Can be TREATED with ANTIBIOTICS

a)

Bacteria

b)

Virus

23.

Malaria is a disease caused by...

a)

An alga

b)

A protozoa

c)

A mosquito

d)

A rabbit

24.
One celled organisms with no nucleus
a)
Bacteria
b)
Protists
c)
Fungi
d)
Virus
25.

Identify the organism and choose the correct category of microorganism to which it belongs.

a)

Fungi

b)

Algae

c)

Protozoa

d)

Bacteria

26.

The example of protozoa is/are-

a)

euglena

b)

amoeba

c)

paramecium

d)

all of the above

27.

What are the two functions that are only found in the plant cell?

a)

Cell membrane and chloroplast

b)

Cell wall and chromosome

c)

Cell wall and chloroplast

d)

Cell membrane cytoplasm

28.

What is this function called?

a)

Vacuole

b)

Nucleus

c)

cell membrane

d)

Nuclear membrane

29.

What is this function called?

a)

Endoplasmic Reticulum

b)

Vacuole

c)

Ribosome

d)

Cytoplasm

30.

Which function helps maintain the water balance of the cell?

a)

Vacuole

b)

Nucleus

c)

Chromosome

d)

Cell membrane

31.

Which organelle is responsible for the structure and strength of the cell?

a)

9

b)

3

c)

5

d)

7

32.

Which organelle is number 8?

a)

Cell wall

b)

Mitochondria

c)

Nucleus

d)

Endoplasmic Reticulum

33.

Which organelle holds the DNA, or information about the cell and how it should function?

a)

1

b)

2

c)

3

d)

4

34.

What is the nucleus ?

a)

Is the cell activity cordinator and manager.

b)

Is the distributor of the cell.

c)

Are the protein factories.

d)

Is the power generator of the cell.

e)

Is like the floor of the cell.

35.

What is the Cytoplasm?

a)

Is the cell activity cordinator and manager.

b)

Is the distributor of the cell.

c)

Are the protein factories.

d)

Is the power generator of the cell.

e)

Is like the floor of the cell.

36.

What is the Cellular Membrane?

a)

Are the channels of transportation and storage of cell substances.

b)

Is the cell gate.

c)

Is the solar panel that produces food.

d)

Is the skeleton of the plant cell.

e)

Is the storage system of the plant cell.

37.

What is the Chloroplasts?

a)

Are the channels of transportation and storage of cell substances.

b)

Is the cell gate.

c)

Is the solar panel that produces food.

d)

Is the skeleton of the plant cell.

e)

Is the storage system of the plant cell.

38.

What is the Vacuole?

a)

Are the channels of transportation and storage of cell substances.

b)

Is the cell gate.

c)

Is the solar panel that produces food.

d)

Is the skeleton of the plant cell.

e)

Is the storage system of the plant cell.

39.

Which part of the cell is often called "the brain of the cell"? Is the part where you can see the cell activity cordinator and manager.

a)

Cell Membrane

b)

Endoplasmic Reticulum

c)

Nucleus

d)

Mitochondria

40.

What is this part of the cell?

a)

Ribosomes

b)

Vacuole

c)

Mitochondria

41.

The skeleton of the plant cell is called:

a)

Nucleus

b)

Chloroplast

c)

Cell Wall

42.

A plant cell is being shown. What is structure #2?

a)

Mitochondria

b)

Nucleus

c)

Ribosome

d)

Chloroplast

43.

A plant cell is being shown. What is the structure labeled 1?

a)

Nucleus

b)

Vacuole

c)

mitochondria

44.

What is this part called:

a)

Nucleus

b)

Cytoplasm

c)

Mitochondria

45.

What are these called?

a)

Organs

b)

Shapes

c)

Organelles

d)

Pieces of a cell

46.

What is this?

a)

Cell Wall

b)

Cell Membrane

c)

Cytoplasm

d)

Mitochondria

47.

What is the function of the Cell Wall?

a)

Supports and protects a plant cell

b)

Has no function

c)

Makes the cell weak

d)

Is the shape of the cell

48.

What is the function of the Cytoplasm?

a)

Makes the cell soft and fluid

b)

Is a jellylike substance that help the cell stay healthy

c)

Has no function

d)

Keeps the cell intact

49.

What is the function of the Nucleus?

a)

Has no functionj

b)

Moves the cell

c)

Directs a cells activity

d)

Keeps the cell in one place

50.

What is the function of the Vacuole?

a)

Stores food, water, or wastes

b)

Makes energy for the cell

c)

Has no funtion

d)

Supports and protects the cell

51.

What is the function of the Mitochondria?

a)

Releases energy from nutrients

b)

Has no function

c)

Supports and protects the cell

d)

Directs a cells activity

52.
Which of these is a property of metals?
a)
It's malleable
b)
It can't conduct electricity
c)
They are used in food
d)
It's very brittle
53.
Iron is a good conductor, malleable and magnetic. What type of element is Iron? 
a)
Metal
b)
Nonmetal
c)
Metalloid
d)
Pretty
54.

Which of the following is a property of a non-metal?

a)

Lustrous

b)

Low melting and boiling points

c)

Malleable

d)

Ductile

55.

Which is a liquid metal

a)

Mercury

b)

Gold

c)

silver

d)

brass

56.

Which of the following statements below is true?

a)

Copper is more ductile than brass

b)

Brass is more malleable than copper

c)

Iron is shinier than stainless steel

d)

Iron is more resistant to corrosion than steel

57.

Which of the following properties does not belong to an alloy as compared to its pure metal?

a)

Stronger

b)

More corrosion resistant

c)

Harder

d)

More malleable

58.

Brass is an alloy made of

a)

copper and zinc

b)

copper and tin

c)

copper and nickel

d)

copper and aluminum

59.

A mixture of metals is called an (a)   .

60.

Which of the following are alloys? (choose 3)

a)

Lead

b)

Bronze

c)

Brass

d)

Aluminium

e)

Stainless Steel

61.

The most common element added to iron to create steel alloy is ...

a)

tungsten

b)

vanadium

c)

chromium

d)

carbon

62.

Why is steel alloyed with other metals?

a)

To make It stronger

b)

To make it lighter

c)

To make it more resistant to corrosion

d)

All of the above

63.

Define alloys

a)

Metals

b)

Mixture of two or more elements

c)

A group of non-metals

d)

Carbon compound

64.

What makes steels

a)

Iron + steels

b)

Iron + carbon

c)

Iron + antimony

d)

Iron + iron3

e)

Iron + vanadium

65.

Bronze is an alloy made of

a)

aluminum and magnesium

b)

copper and tin

c)

lead and tin

d)

copper and nickel

66.

All metal elements melt at the same boiling point.

a)

True

b)

False

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